body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
}

.tab-bar-bottom {
  position: fixed;
  z-index: 9999;
  bottom: 0;
}

.flex-btn {
  margin: 0 10px
}

/** 置顶悬浮*/
.hearder {
  width: 100%;
  height: 50px;
  position: fixed;
  z-index: 9999;
  top: 0;
}

.body-container {
  width: 100%;
  /**不能用这种方式来动态高度,占位符会跟着移动*/
  /* height:calc(100vh - 100px); */
}

/** 置底悬浮*/
.footer {
  position: fixed;
  bottom: 0px;
  width: 100%;
  height: 50px;
}

.placeholder {
  height: 50px;
}

.error-holder{
  height: 25px;
  text-align: center;
  font-size: 18px;
  color: red;
}